header{
    height: 44px;
}

.ad-bg{
    background: url(../../assets/imgs/背景1.jpg) no-repeat center;
    background-size: cover;
}

#jump{
    width: 96px;
    height: 36px;
    line-height: 36px;
    border-radius: 20px;
    background-color: #fff;
    top:60px;
    right:26px;
}

#slogn{
   width: 100%;
   font-size: 50px;
   bottom:122px;

   animation: run 1s linear;
}

@keyframes run {
    0%{
        font-size: 0;
        bottom:250px;
        opacity: 0;
    }

    100%{
        font-size: 50px;
        bottom:122px;
        opacity: 1;
    }
}